Results 271 to 280 of about 856,839 (311)

Lighting spectrum to maximize colorfulness

Optics Letters, 2012
The spectrum of modern illumination can be computationally tailored considering the visual effects of lighting. We investigated the spectral profiles of the white illumination maximizing the theoretical limits of the perceivable object colors. A large number of metamers with various degrees of smoothness were generated on and around the Planckian locus,
Osamu, Masuda, Sérgio M C, Nascimento
openaire   +2 more sources

GREEN CHEMICAL LIGHT SPECTRUM∗

American journal of optometry and physiological optic, 1975
ABSTRSCT The relative radiant power and luminous power spectra of the emission from a commercially available green chemical light are reported.
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Invariance of the Spectrum of Light on Propagation

Physical Review Letters, 1986
The question is raised as to whether the normalized spectrum of light remains unchanged on propagation through free space. It is shown that for sources of a certain class that includes the usual thermal sources, the normalized spectrum will, in general, depend on the location of the observation point unless the degree of spectral coherence of the light
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The clinical spectrum of light chain myeloma

The American Journal of Medicine, 1972
Excerpt Light chain disease is a common form of myeloma that is frequently difficult to recognize because of its variable clinical features and the absence of a monoclonal spike on routine serum pr...
Marvin J. Stone, Eugene P. Frenkel
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Light Field Estimation in the Ultraviolet Spectrum

2017
Ultraviolet cameras are becoming well used, with their applications in botany, dermatology, and recently in photography. In this paper, we develop a novel method of light field estimation from an ultraviolet image. Our UV light field imaging model is obtained by exploiting the radiometry, the optic, and the acquisition geometry.
Julien Couillaud, Djemel Ziou, Wafa Benzaoui   +2 more
openaire   +1 more source

FUNDUS EXAMINATION WITH RESTRICTED SPECTRUM LIGHT

American journal of optometry and archives of American Academy of Optometry, 1971
ABSTRACT The visibility of fundal structures is dependent upon the variation of spectral reflectance and absorptance of these structures. A review of the more important studies of the human fundus oculi in light of different spectral composition is presented.
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Spectrum of the Northern Lights

Science, 1928
  +4 more sources

Effects of partial replacement of red by green light in the growth spectrum on photomorphogenesis and photosynthesis in tomato plants

Photosynthesis Research, 2021
Magdalena Trojak, Ernest Skowron, Maciej Kocurek   +2 more
exaly  

Effects of different LEDs light spectrum on the growth, leaf anatomy, and chloroplast ultrastructure of potato plantlets in vitro and minituber production after transplanting in the greenhouse

Journal of Integrative Agriculture, 2020
Zhao-Hai Zeng, Yue-Gao Hu
exaly  

Light Spectrum

San Antonio Review, 2019
openaire   +1 more source